Library of Congress, Flickr and The Commons

Woman aircraft worker, Vega Aircraft Corporation, Burbank, Calif.
Shown checking electrical assemblies (LOC)

The Commons is a collaboration between Library of Congress and Flickr to "to facilitate giving people a voice in describing the content of a publicly-held photography collection." The images posted have "no known copyright restrictions" and everyone is invited to tag or comment on the images on Flickr.

LOC has also blogged about the enthusiastic response.